I see lots of communities with hundreds of subscribers, but no posts. What is with that? If you’re going to register a community, at least help it get going. Post some content regularly, until it becomes self-sustaining. It’s disappointing to open a community with hundreds of subscribers and not a single post.
I imagine it has a lot to do with having the community available for people to post in and hoping they will use Lemmy community finding services.
If they are coming from Reddit they may not have a ton to post that wouldn’t just be reposted from a subreddit